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\input macro.tex
\def\today{\ifcase\month\or
  January\or February\or March\or April\or May\or June\or
  July\or August\or September\or October\or November\or December\fi
  \space\number\day, \number\year}
\baselineskip 14pt
\rm
\line{\sevenrm a40.tex[106,phy] \today\hfill}

\bigskip
\line{\bf Exercise (P04.PGO)\hfill}

\bigskip
Turn your program P02.PGO into a procedure for printing stairlike
pictures, where the first parameter is the number of steps and the
second the width of each step. Use it in an iteration with several
different values of the parameters.

\bigskip
\parindent0pt
\copyright 1984 Robert W. Floyd

First draft October 16, 1984

\bye